EP 2052400 A4 20101208 - FILM FOR IMPROVING CONTRAST AND PLASMA DISPLAY PANEL AND DISPLAY DEVICE INCLUDING THE SAME
Title (en)
FILM FOR IMPROVING CONTRAST AND PLASMA DISPLAY PANEL AND DISPLAY DEVICE INCLUDING THE SAME
Title (de)
FOLIE ZUR KONTRASTERHÖHUNG SOWIE PLASMAANZEIGETAFEL UND ANZEIGEVORRICHTUNG DAMIT
Title (fr)
FILM DESTINÉ À AMÉLIORER LE CONTRASTE ET PANNEAU D'AFFICHAGE PLASMA ET DISPOSITIF D'AFFICHAGE COMPRENANT CE FILM
Publication
Application
Priority
- KR 2007003937 W 20070817
- KR 20060077567 A 20060817
Abstract (en)
[origin: WO2008020725A1] There is provided a film for improving contrast, the film including a plurality of stripes each having a section in the shape of one of a trapezoid, a triangle, with a decreasing width from a surface of the film to an inner portion of the film, a rectangle, and a parallelogram, having a constant width from the surface of the film to the inner portion of the film. In a cross-sectional view cut along a thickness direction of the film, a line connecting an inner edge of an inner portion of one stripe with an inner edge of an outer portion of another adjacent stripe forms a shielding angle of 15 to 50° with a normal line perpendicular to a surface of the film.
IPC 8 full level
H01J 17/49 (2006.01)
CPC (source: EP KR US)
G02B 5/20 (2013.01 - KR); H01J 11/12 (2013.01 - EP KR US); H01J 11/44 (2013.01 - EP KR US); H01J 2211/442 (2013.01 - KR); H01J 2211/444 (2013.01 - EP KR US); H01J 2211/446 (2013.01 - KR); Y10T 428/18 (2015.01 - EP US); Y10T 428/187 (2015.01 - EP US)
Citation (search report)
- [X] US 2005237611 A1 20051027 - OSAWA FUTOSHI [JP], et al
- [A] US 2004108980 A1 20040610 - YONEKUBO MASATOSHI [JP], et al
- [A] EP 1677336 A2 20060705 - SAMSUNG CORNING CO LTD [KR]
- See references of WO 2008020725A1
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
WO 2008020725 A1 20080221; WO 2008020725 A9 20081002; CN 101401184 A 20090401; CN 101401184 B 20100609; EP 2052400 A1 20090429; EP 2052400 A4 20101208; JP 2009539139 A 20091112; KR 100804276 B1 20080218; US 2009160337 A1 20090625
DOCDB simple family (application)
KR 2007003937 W 20070817; CN 200780009074 A 20070817; EP 07793541 A 20070817; JP 2009513070 A 20070817; KR 20060077567 A 20060817; US 22455007 A 20070817